Words Starting with O and Ending in SIS
Words that start with O and end in SIS will help you land the highest-scoring word when you're playing a word game, like Words With Friends® or Scrabble® GO. We are here to provide you with words that start with O and words that end in SIS, organized alphabetically or by total points.
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14 Letter Words
| omphaloskepsis | ||
| onchocerciasis | ||
2 of 2 words
13 Letter Words
| organogenesis | |
| osteonecrosis |
2 of 2 words
12 Letter Words
| overemphasis | |
| overanalysis | |
| orthogenesis | |
| otosclerosis | |
| osteogenesis | |
| osteoporosis |
6 of 6 words
11 Letter Words
| oncogenesis | |
| ontogenesis |
2 of 2 words
10 Letter Words
| oxyuriasis | |
| ornithosis | |
| orogenesis | |
| osteolysis |
4 of 4 words
9 Letter Words
| oogenesis |
1 of 1 words
8 Letter Words
| orthosis | |
| osteosis |
2 of 2 words
7 Letter Words
| osmosis | |
| ostosis |
2 of 2 words
5 Letter Words
| oasis |
1 of 1 words